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gen_funcs.sh
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gen_funcs.sh
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#!/bin/bash
# $Id$
isTrue() {
case "$1" in
[Tt][Rr][Uu][Ee])
return 0
;;
[Tt])
return 0
;;
[Yy][Ee][Ss])
return 0
;;
[Yy])
return 0
;;
1)
return 0
;;
esac
return 1
}
anyTrue() {
local x
for x
do
isTrue "${x}" && return 0
done
return 1
}
set_color_vars() {
if ! isTrue "${NOCOLOR}"
then
BOLD=$'\e[0;01m'
UNDER=$'\e[4m'
GOOD=$'\e[32;01m'
WARN=$'\e[33;01m'
BAD=$'\e[31;01m'
NORMAL=$'\e[0m'
else
BOLD=''
UNDER=''
GOOD=''
WARN=''
BAD=''
NORMAL=''
fi
}
set_color_vars
dump_debugcache() {
TODEBUGCACHE=no
if [ -w "${LOGFILE}" ]
then
echo "${DEBUGCACHE}" >> "${LOGFILE}"
else
echo "WARNING: Cannot write to '${LOGFILE}'!"
echo "${DEBUGCACHE}"
fi
DEBUGCACHE=
}
# print_info(loglevel, print [, newline [, prefixline [, forcefile ] ] ])
print_info() {
local reset_x=0
if [ -o xtrace ]
then
set +x
reset_x=1
fi
local NEWLINE=1
local FORCEFILE=1
local PREFIXLINE=1
local SCRPRINT=0
local STR=''
[[ ${#} -lt 2 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes at least two arguments (${#} given)!"
[[ ${#} -gt 5 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes at most five arguments (${#} given)!"
# IF 3 OR MORE ARGS, CHECK IF WE WANT A NEWLINE AFTER PRINT
if [ ${#} -gt 2 ]
then
if isTrue "$3"
then
NEWLINE=1
else
NEWLINE=0
fi
fi
# IF 4 OR MORE ARGS, CHECK IF WE WANT TO PREFIX WITH A *
if [ ${#} -gt 3 ]
then
if isTrue "$4"
then
PREFIXLINE=1
else
PREFIXLINE=0
fi
fi
# IF 5 OR MORE ARGS, CHECK IF WE WANT TO FORCE OUTPUT TO DEBUG
# FILE EVEN IF IT DOESN'T MEET THE MINIMUM DEBUG REQS
if [ ${#} -gt 4 ]
then
if isTrue "$5"
then
FORCEFILE=1
else
FORCEFILE=0
fi
fi
# PRINT TO SCREEN ONLY IF PASSED LOGLEVEL IS HIGHER THAN
# OR EQUAL TO SET LOG LEVEL
if [[ ${1} -lt ${LOGLEVEL} || ${1} -eq ${LOGLEVEL} ]]
then
SCRPRINT=1
fi
# RETURN IF NOT OUTPUTTING ANYWHERE
if [ ${SCRPRINT} -ne 1 -a ${FORCEFILE} -ne 1 ]
then
[ ${reset_x} -eq 1 ] && set -x
return 0
fi
# STRUCTURE DATA TO BE OUTPUT TO SCREEN, AND OUTPUT IT
if [ ${SCRPRINT} -eq 1 ]
then
if [ ${PREFIXLINE} -eq 1 ]
then
STR="${GOOD}*${NORMAL} ${2}"
else
STR="${2}"
fi
printf "%b" "${STR}"
if [ ${NEWLINE} -ne 0 ]
then
echo
fi
fi
# STRUCTURE DATA TO BE OUTPUT TO FILE, AND OUTPUT IT
if [ ${SCRPRINT} -eq 1 -o ${FORCEFILE} -eq 1 ]
then
local STRR=${2//${WARN}/}
STRR=${STRR//${BAD}/}
STRR=${STRR//${BOLD}/}
STRR=${STRR//${NORMAL}/}
if [ ${PREFIXLINE} -eq 1 ]
then
STR="* ${STRR}"
else
STR="${STRR}"
fi
if isTrue "${TODEBUGCACHE}"
then
DEBUGCACHE="${DEBUGCACHE}${STR}"
else
printf "%b" "${STR}" >> "${LOGFILE}"
fi
if [ ${NEWLINE} -ne 0 ]
then
if isTrue "${TODEBUGCACHE}"
then
DEBUGCACHE="${DEBUGCACHE}"$'\n'
else
echo >> "${LOGFILE}"
fi
fi
fi
[ ${reset_x} -eq 1 ] && set -x
return 0
}
print_error() {
GOOD=${BAD} print_info "$@"
}
print_warning() {
GOOD=${WARN} print_info "$@"
}
can_run_programs_compiled_by_genkernel() {
local can_run_programs=no
if ! isTrue "$(tc-is-cross-compiler)"
then
can_run_programs=yes
else
if [[ ${CBUILD} = x86_64* && ${ARCH} == "x86" ]]
then
can_run_programs=yes
elif [[ ${CBUILD} = powerpc64* && ${ARCH} == "powerpc" ]]
then
can_run_programs=yes
fi
fi
echo "${can_run_programs}"
}
has_space_characters() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local testvalue=${1}
local has_space_characters=no
local space_pattern='[[:space:]]'
if [[ "${testvalue}" =~ ${space_pattern} ]]
then
has_space_characters=yes
fi
echo "${has_space_characters}"
}
is_glibc() {
if ! hash getconf &>/dev/null
then
gen_die "getconf not found. Unable to determine libc implementation!"
fi
local is_glibc=no
getconf GNU_LIBC_VERSION &>/dev/null
[ $? -eq 0 ] && is_glibc=yes
echo "${is_glibc}"
}
is_gzipped() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local file_to_check=${1}
if [ ! -f "${file_to_check}" ]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): File '${file_to_check}' does not exist!"
fi
local file_is_gzipped=no
local file_mimetype=$(file --brief --mime-type "${file_to_check}" 2>/dev/null)
case "${file_mimetype}" in
application/x-gzip)
file_is_gzipped=yes
;;
application/gzip)
file_is_gzipped=yes
;;
esac
echo "${file_is_gzipped}"
}
is_psf_file() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local file_to_check=${1}
if [ ! -f "${file_to_check}" ]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): File '${file_to_check}' does not exist!"
fi
local file_is_psf=no
local file_brief=$(file --brief "${file_to_check}" 2>/dev/null)
if [[ "${file_brief}" == *"PC Screen Font"* ]]
then
file_is_psf=yes
fi
echo "${file_is_psf}"
}
is_kext_supported_by_kmod() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local requested_feature=${1}
requested_feature=${requested_feature##*.}
requested_feature=${requested_feature^^}
local is_supported=no
if [[ "${requested_feature}" == GZ ]]
then
requested_feature=ZLIB
elif [[ "${requested_feature}" == ZST ]]
then
requested_feature=ZSTD
fi
case "${requested_feature}" in
KO)
is_supported=yes
;;
*)
local line
while read line; do
if [[ ! ${line} =~ ^[\+\-] ]]
then
continue
fi
if [[ ${line} =~ \+${requested_feature} ]]
then
is_supported=yes
break
fi
done < <("${KMOD_CMD}" -V 2>/dev/null)
;;
esac
echo "${is_supported}"
}
is_valid_ssh_host_keys_parameter_value() {
local parameter_value=${1}
local is_valid=no
case "${parameter_value}" in
create|create-from-host|runtime)
is_valid=yes
;;
esac
echo "${is_valid}"
}
is_valid_triplet() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local triplet=${1}
local is_triplet=no
if [[ "${triplet}" =~ ^[^-]{2,}-[^-]{2,}-.{2,} ]]
then
is_triplet=yes
fi
echo "${is_triplet}"
}
# var_replace(var_name, var_value, string)
# $1 = variable name
# $2 = variable value
# $3 = string
var_replace() {
[[ ${#} -ne 3 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly three arguments (${#} given)!"
# Escape '\' and '.' in $2 to make it safe to use
# in the later sed expression
local SAFE_VAR
SAFE_VAR=$(echo "${2}" | sed -e 's#\([/.]\)#\\\1#g')
echo "${3}" | sed -e "s/%%${1}%%/${SAFE_VAR}/g" -
if [ $? -ne 0 ]
then
gen_die "var_replace() failed: 1: '${1}' 2: '${2}' 3: '${3}'"
fi
}
arch_replace() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
var_replace "ARCH" "${ARCH}" "${1}"
}
cache_replace() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
var_replace "CACHE" "${GK_V_CACHEDIR}" "${1}"
}
kv_replace() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
var_replace "KV" "${KV}" "${1}"
}
# Internal func. The first argument is the version info to expand.
# Query the preprocessor to improve compatibility across different
# compilers rather than maintaining a --version flag matrix. #335943
_gcc_fullversion() {
local ver="$1"; shift
set -- $($(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__")
eval echo "$ver"
}
# @FUNCTION: gcc-fullversion
# @RETURN: compiler version (major.minor.micro: [3.4.6])
gcc-fullversion() {
_gcc_fullversion '$1.$2.$3' "$@"
}
# @FUNCTION: gcc-version
# @RETURN: compiler version (major.minor: [3.4].6)
gcc-version() {
_gcc_fullversion '$1.$2' "$@"
}
# @FUNCTION: gcc-major-version
# @RETURN: major compiler version (major: [3].4.6)
gcc-major-version() {
_gcc_fullversion '$1' "$@"
}
# @FUNCTION: gcc-minor-version
# @RETURN: minor compiler version (minor: 3.[4].6)
gcc-minor-version() {
_gcc_fullversion '$2' "$@"
}
# @FUNCTION: gcc-micro-version
# @RETURN: micro compiler version (micro: 3.4.[6])
gcc-micro-version() {
_gcc_fullversion '$3' "$@"
}
gen_die() {
set +x
dump_debugcache
if [ "$#" -gt '0' ]
then
print_error 1 "ERROR: ${1}"
fi
if [[ -n "${GK_MASTER_PID}" && ${BASHPID} != ${GK_MASTER_PID} ]]
then
# We died in a subshell! Let's trigger trap function...
kill -s SIGTERM ${GK_MASTER_PID}
else
if [ -z "${GK_DIED_IN}" ]
then
GK_DIED_IN="$(get_useful_function_stack)"
else
# We are already dying
exit 1
fi
# Don't trust $LOGFILE before determine_real_args() was called
if [ -n "${CMD_LOGFILE}" -a -s "${LOGFILE}" ]
then
print_error 1 "Please consult '${LOGFILE}' for more information and any"
print_error 1 "errors that were reported above."
print_error 1 ''
fi
print_error 1 "Report any genkernel bugs to bugs.gentoo.org and"
print_error 1 "assign your bug to genkernel@gentoo.org. Please include"
print_error 1 "as much information as you can in your bug report; attaching"
print_error 1 "'${LOGFILE}' so that your issue can be dealt with effectively."
print_error 1 ''
print_error 1 "Please do ${BOLD}*not*${NORMAL} report ${BOLD}kernel${NORMAL} compilation failures as genkernel bugs!"
print_error 1 ''
restore_boot_mount_state
# Cleanup temp dirs and caches if requested
cleanup
fi
exit 1
}
get_grep_cmd_for_file() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local config_file=${1}
local grep_cmd=${GREP_CMD}
if isTrue "$(is_gzipped "${config_file}")"
then
grep_cmd=${ZGREP_CMD}
fi
# zgrep for example is optional
if [ -z "${grep_cmd}" ]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")No grep implementation found which can process '${config_file}'!"
fi
echo "${grep_cmd}"
}
# @FUNCTION: get_indent
# @USAGE: <level>
# @DESCRIPTION:
# Returns the indent level in spaces.
#
# <level> Indentation level.
get_indent() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local _level=${1}
local _indent=
local _indentTemplate=" "
local i=0
while [[ ${i} -lt ${_level} ]]
do
_indent+=${_indentTemplate}
i=$[$i+1]
done
echo "${_indent}"
}
get_initramfs_compression_method_by_compression() {
local -a methods=()
methods+=( XZ )
methods+=( LZMA )
methods+=( ZSTD )
methods+=( GZIP )
methods+=( BZIP2 )
methods+=( LZO )
methods+=( LZ4 )
echo "${methods[@]}"
}
get_initramfs_compression_method_by_speed() {
local -a methods=()
methods+=( LZ4 )
methods+=( ZSTD )
methods+=( LZO )
methods+=( GZIP )
methods+=( BZIP2 )
methods+=( LZMA )
methods+=( XZ )
echo "${methods[@]}"
}
setup_cache_dir() {
if [ ! -d "${GK_V_CACHEDIR}" ]
then
mkdir -p "${GK_V_CACHEDIR}" || gen_die "Failed to create '${GK_V_CACHEDIR}'!"
fi
if isTrue "${CLEAR_CACHEDIR}"
then
print_info 2 "Clearing cache dir contents from ${CACHE_DIR} ..."
while read i
do
print_info 3 "$(get_indent 1)>> removing ${i}"
rm "${i}"
done < <(find "${CACHE_DIR}" -maxdepth 2 -type f -name '*.tar.*' -o -name '*.bz2' -o -name '*.xz')
fi
}
cleanup() {
# Child processes we maybe want to kill can only appear in
# current session
local session=$(ps -o sess= ${$} 2>/dev/null | awk '{ print $1 }')
if [ -n "${session}" ]
then
# Time to kill any still running child process.
# All our childs will have GK_SHARE environment variable set.
local -a killed_pids
local pid_to_kill=
while IFS= read -r -u 3 pid_to_kill
do
# Don't kill ourselves or we will trigger trap
[ "${pid_to_kill}" = "${BASHPID}" ] && continue
# Killing process group allows us to catch grandchilds
# with clean environment, too.
if kill -${pid_to_kill} &>/dev/null
then
killed_pids+=( ${pid_to_kill} )
fi
done 3< <(ps e -s ${session} 2>/dev/null | grep GK_SHARE= 2>/dev/null | awk '{ print $1 }')
if [ ${#killed_pids[@]} -gt 0 ]
then
# Be patient -- still running process could prevent cleanup!
sleep 3
# Add one valid pid so that ps command won't fail
killed_pids+=( ${BASHPID} )
killed_pids=$(IFS=,; echo "${killed_pids[*]}")
# Processes had enough time to gracefully terminate!
while IFS= read -r -u 3 pid_to_kill
do
# Don't kill ourselves or we will trigger trap
[ "${pid_to_kill}" = "${BASHPID}" ] && continue
kill -9 -${pid_to_kill} &>/dev/null
done 3< <(ps --no-headers -q ${killed_pids} 2>/dev/null | awk '{ print $1 }')
fi
else
print_warning 1 "Failed to determine session leader; Will not try to stop child processes"
fi
if isTrue "${CLEANUP}"
then
if [ -n "${TEMP}" -a -d "${TEMP}" ]
then
rm -rf "${TEMP}"
fi
if isTrue "${POSTCLEAR}"
then
echo
print_info 2 'Running final cache/tmp cleanup ...'
print_info 3 "CACHE_DIR: ${CACHE_DIR}"
CLEAR_CACHEDIR=yes setup_cache_dir
echo
print_info 3 "TMPDIR: ${TMPDIR}"
clear_tmpdir
fi
else
print_info 2 "--no-cleanup is set; Skipping cleanup ..."
print_info 3 "TEMP: ${TEMP}"
print_info 3 "CACHE_DIR: ${CACHE_DIR}"
print_info 3 "TMPDIR: ${TMPDIR}"
fi
GK_TIME_END=$(date +%s)
let GK_TIME_RUNTIME_SECONDS=${GK_TIME_END}-${GK_TIME_START}
let GK_TIME_RUNTIME_DAYS=${GK_TIME_RUNTIME_SECONDS}/86400
TZ= printf ">>> Ended on: $(date +"%Y-%m-%d %H:%M:%S") (after %d days%(%k hours %M minutes %S seconds)T)\n" ${GK_TIME_RUNTIME_DAYS} ${GK_TIME_RUNTIME_SECONDS} >> "${LOGFILE}" 2>/dev/null
}
clear_tmpdir() {
if isTrue "${CMD_INSTALL}"
then
TMPDIR_CONTENTS=$(ls "${TMPDIR}")
print_info 2 "Removing tmp dir contents"
for i in ${TMPDIR_CONTENTS}
do
print_info 3 "$(get_indent 1)>> removing ${i}"
rm -r "${TMPDIR}/${i}"
done
fi
}
# @FUNCTION: copy_image_with_preserve
# @USAGE: <symlink name> <source image> <dest image>
# @DESCRIPTION:
# Function to copy various kernel boot image products to the boot directory,
# preserve a generation of old images (just like the manual kernel build's
# "make install" does), and maintain the symlinks (if enabled).
#
# <symlink name> Symlink in the boot directory. Path not included.
#
# <source image> Fully qualified path name of the source image.
#
# <dest image> Name of the destination image in the boot directory,
# no path included.
copy_image_with_preserve() {
[[ ${#} -ne 3 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly three arguments (${#} given)!"
local symlinkName=${1}
local newSrceImage=${2}
local fullDestName=${3}
local currDestImage
local prevDestImage
print_info 3 "Shall copy new ${symlinkName} image, " 0
# Old product might be a different version. If so, we need to read
# the symlink to see what it's name is, if there are symlinks.
cd "${KERNEL_OUTPUTDIR}" || gen_die "Failed to chdir to '${KERNEL_OUTPUTDIR}'!"
if isTrue "${SYMLINK}"
then
print_info 3 "automatically managing symlinks and old images." 1 0
if [ -e "${BOOTDIR}/${symlinkName}" ]
then
# JRG: Do I need a special case here for when the standard symlink
# name is, in fact, not a symlink?
currDestImage=$(readlink --no-newline "${BOOTDIR}/${symlinkName}")
print_info 4 "Current ${symlinkName} symlink exists:"
print_info 4 " ${currDestImage}"
else
currDestImage="${fullDestName}"
print_info 4 "Current ${symlinkName} symlink does NOT exist."
print_info 4 " Defaulted to: ${currDestImage}"
fi
if [ -e "${BOOTDIR}/${symlinkName}.old" ]
then
# JRG: Do I need a special case here for when the standard symlink
# name is, in fact, not a symlink?
prevDestImage=$(readlink --no-newline "${BOOTDIR}/${symlinkName}.old")
print_info 4 "Old ${symlinkName} symlink exists:"
print_info 4 " ${prevDestImage}"
else
prevDestImage="${fullDestName}.old"
print_info 4 "Old ${symlinkName} symlink does NOT exist."
print_info 4 " Defaulted to: ${prevDestImage}"
fi
else
print_info 3 "symlinks not being handled by genkernel." 1 0
currDestImage="${fullDestName}"
prevDestImage="${fullDestName}.old"
fi
if [ -e "${BOOTDIR}/${currDestImage}" ]
then
local currDestImageExists=yes
print_info 4 "Actual image file '${BOOTDIR}/${currDestImage}' does exist."
else
local currDestImageExists=no
print_info 4 "Actual image file '${BOOTDIR}/${currDestImage}' does NOT exist."
fi
if [ -e "${BOOTDIR}/${prevDestImage}" ]
then
local prevDestImageExists=yes
print_info 4 "Actual old image file '${BOOTDIR}/${prevDestImage}' does exist."
else
local prevDestImageExists=no
print_info 4 "Actual old image file '${BOOTDIR}/${prevDestImage}' does NOT exist."
fi
# When symlinks are not being managed by genkernel, old symlinks might
# still be useful. Leave 'em alone unless managed.
if isTrue "${SYMLINK}"
then
local -a old_symlinks=()
old_symlinks+=( "${BOOTDIR}/${symlinkName}" )
old_symlinks+=( "${BOOTDIR}/${symlinkName}.old" )
local old_symlink=
for old_symlink in "${old_symlinks[@]}"
do
if [ -L "${old_symlink}" ]
then
print_info 4 "Deleting old symlink '${old_symlink}' ..."
rm "${old_symlink}" || gen_die "Failed to delete '${old_symlink}'!"
else
print_info 4 "Old symlink '${old_symlink}' does NOT exist; Skipping ..."
fi
done
unset old_symlinks old_symlink
fi
# We only erase the .old image when it is the exact same version as the
# current and new images. Different version .old (and current) images are
# left behind. This is consistent with how "make install" of the manual
# kernel build works.
if [ "${currDestImage}" == "${fullDestName}" ]
then
# Case for new and currrent of the same base version.
print_info 4 "Same base version (${currDestImage})."
if isTrue "${currDestImageExists}"
then
if [ -e "${BOOTDIR}/${currDestImage}.old" ]
then
print_info 3 "Deleting old identical ${symlinkName} version '${BOOTDIR}/${currDestImage}.old' ..."
rm "${BOOTDIR}/${currDestImage}.old" \
|| gen_die "Failed to delete '${BOOTDIR}/${currDestImage}.old'!"
fi
print_info 3 "Moving '${BOOTDIR}/${currDestImage}' to '${BOOTDIR}/${currDestImage}.old' ..."
mv "${BOOTDIR}/${currDestImage}" "${BOOTDIR}/${currDestImage}.old" \
|| gen_die "Could not rename the old ${symlinkName} image!"
prevDestImage="${currDestImage}.old"
prevDestImageExists=yes
fi
else
# Case for new / current not of the same base version.
print_info 4 "Different base version."
prevDestImage="${currDestImage}"
currDestImage="${fullDestName}"
fi
print_info 3 "Copying '${newSrceImage}' to '${BOOTDIR}/${currDestImage}' ..."
cp -aL "${newSrceImage}" "${BOOTDIR}/${currDestImage}" \
|| gen_die "Failed to copy '${newSrceImage}' to '${BOOTDIR}/${currDestImage}'!"
if isTrue "${SYMLINK}"
then
print_info 3 "Creating '${symlinkName}' -> '${currDestImage}' symlink ..."
ln -s "${currDestImage}" "${BOOTDIR}/${symlinkName}" \
|| gen_die "Failed to create '${symlinkName}' -> '${currDestImage}' symlink!"
if isTrue "${prevDestImageExists}"
then
print_info 3 "Creating '${symlinkName}.old' -> '${prevDestImage}' symlink ..."
ln -s "${prevDestImage}" "${BOOTDIR}/${symlinkName}.old" \
|| "Failed to create '${symlinkName}.old' -> '${prevDestImage}' symlink!"
fi
fi
}
dropbear_create_key() {
[[ ${#} -ne 2 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly two arguments (${#} given)!"
local key_file=${1}
local command=${2}
local key_type=$(dropbear_get_key_type_from_filename "${key_file}")
local -a envvars=(
"GK_SHARE='${GK_SHARE}'"
"LOGLEVEL='${LOGLEVEL}'"
"LOGFILE='${LOGFILE}'"
"NOCOLOR='${NOCOLOR}'"
"PATH='${PATH}'"
"TEMP='${TEMP}'"
)
envvars+=(
"DROPBEAR_COMMAND='${command}'"
"DROPBEAR_KEY_FILE='${key_file}'"
"DROPBEAR_KEY_TYPE='${key_type}'"
)
if isTrue "${SANDBOX}"
then
envvars+=( "SANDBOX_LOG='$(get_temp_file "sandbox_XXXXXX.log")'" )
envvars+=( "SANDBOX_WRITE='${LOGFILE}:${TEMP}:/proc/thread-self/attr/fscreate'" )
fi
# set up worker signal handler
local error_msg_detail="Failed to create dropbear key '${key_file}'!"
local error_msg="gen_worker.sh aborted: ${error_msg_detail}"
trap "gen_die \"${error_msg}\"" SIGABRT SIGHUP SIGQUIT SIGINT SIGTERM
local dropbear_command=( "env -i" )
dropbear_command+=( "${envvars[*]}" )
dropbear_command+=( "${SANDBOX_COMMAND}" )
dropbear_command+=( "${GK_SHARE}/gen_worker.sh" )
dropbear_command+=( "dropbear" )
dropbear_command+=( "2>&1" )
eval "${dropbear_command[@]}"
local RET=$?
# restore default trap
set_default_gk_trap
[ ${RET} -ne 0 ] && gen_die "$(get_useful_function_stack)${error_msg_detail}"
}
dropbear_get_key_type_from_filename() {
[[ ${#} -ne 1 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly one argument (${#} given)!"
local key=${1}
local type=
case "${key}" in
*_dss_*)
type=dss
;;
*_ecdsa_*)
type=ecdsa
;;
*_ed25519_*)
type=ed25519
;;
*_rsa_*)
type=rsa
;;
*)
gen_die "Failed to determine key type from '${key}'!"
;;
esac
echo "${type}"
}
dropbear_generate_key_info_file() {
[[ ${#} -ne 3 ]] \
&& gen_die "$(get_useful_function_stack "${FUNCNAME}")Invalid usage of ${FUNCNAME}(): Function takes exactly three arguments (${#} given)!"
local command=${1}
local key_info_file=${2}
local initramfs_dropbear_dir=${3}
local key_file="${initramfs_dropbear_dir}/$(basename "${key_info_file/%_key.*/_key}")"
local key_type=$(dropbear_get_key_type_from_filename "${key_file}")
local -a envvars=(
"GK_SHARE='${GK_SHARE}'"
"LOGLEVEL='${LOGLEVEL}'"
"LOGFILE='${LOGFILE}'"
"NOCOLOR='${NOCOLOR}'"
"PATH='${PATH}'"
"TEMP='${TEMP}'"
)
envvars+=(
"DROPBEAR_COMMAND='${command}'"
"DROPBEAR_KEY_FILE='${key_file}'"
"DROPBEAR_KEY_TYPE='${key_type}'"
"DROPBEAR_KEY_INFO_FILE='${key_info_file}'"
)
if isTrue "${SANDBOX}"
then
envvars+=( "SANDBOX_LOG='$(get_temp_file "sandbox_XXXXXX.log")'" )
envvars+=( "SANDBOX_WRITE='${LOGFILE}:${TEMP}:/proc/thread-self/attr/fscreate'" )
fi
# set up worker signal handler
local error_msg_detail="Failed to extract dropbear key information from '${key_file}'!"
local error_msg="gen_worker.sh aborted: ${error_msg_detail}"
trap "gen_die \"${error_msg}\"" SIGABRT SIGHUP SIGQUIT SIGINT SIGTERM
local dropbear_command=( "env -i" )
dropbear_command+=( "${envvars[*]}" )
dropbear_command+=( "${SANDBOX_COMMAND}" )
dropbear_command+=( "${GK_SHARE}/gen_worker.sh" )
dropbear_command+=( "dropbear" )
dropbear_command+=( "2>&1" )
eval "${dropbear_command[@]}"
local RET=$?
# restore default trap
set_default_gk_trap
[ ${RET} -ne 0 ] && gen_die "$(get_useful_function_stack)${error_msg_detail}"
}
# @FUNCTION: debug_breakpoint
# @USAGE: [<NAME>]
# @DESCRIPTION:
# Internal helper function which can be used during development to act like
# a breakpoint. I.e. will stop execution and show some variables.
#
# <NAME> Give breakpoint a name
debug_breakpoint() {
set +x
local name=${1}
[ -n "${name}" ] && name=" '${name}'"
echo "Debug breakpoint${name} reached"
echo "TEMP: ${TEMP}"
[[ -n "${WORKDIR}" ]] && echo "WORKDIR: ${WORKDIR}"
[[ -n "${S}" ]] && echo "S: ${S}"
[[ -n "${D}" ]] && echo "D: ${D}"
if [ -n "${GK_WORKER_MASTER_PID}" ]
then
[[ ${BASHPID:-$(__bashpid)} == ${GK_WORKER_MASTER_PID} ]] || kill -s SIGTERM ${GK_WORKER_MASTER_PID}
else
[[ ${BASHPID:-$(__bashpid)} == ${GK_MASTER_PID} ]] || kill -s SIGTERM ${GK_MASTER_PID}
fi
exit 99
}
get_chost_libdir() {
local cc=$(tc-getCC)
local test_file=$(${cc} -print-file-name=libc.a 2>/dev/null)
if [ -z "${test_file}" ]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")Unable to determine CHOST's libdir: '${cc} -print-file-name=libc.a' returned nothing!"
elif [[ "${test_file}" == "libc.a" ]]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")Unable to determine CHOST's libdir: '${cc} -print-file-name=libc.a' returned no path!"
fi
local test_file_realpath=$(realpath "${test_file}" 2>/dev/null)
if [ -z "${test_file_realpath}" ]
then
gen_die "$(get_useful_function_stack "${FUNCNAME}")Unable to determine CHOST's libdir: 'realpath \"${test_file}\"' returned nothing!"